add a "debug" method to tell a component to output debugging messages to a

	* Evolution-ShellComponent.idl: add a "debug" method to tell a
	component to output debugging messages to a given file.

	* main.c (main): Add a "--debug filename" argument, to direct
	debugging output for all components to a file. Redirect the
	shell's stdout/stderr to that file if this argument is used.

	* evolution-shell-component-client.c
	(evolution_shell_component_client_set_owner): If debug_log is set,
	call the component's debug method as well.

	* evolution-shell-component.c (impl_ShellComponent_debug):
	redirect stdout/stderr to the named file and emit a "debug"
	signal.

svn path=/trunk/; revision=9046

1 files changed, 17 insertions, 1 deletions

diff --git a/shell/main.c b/shell/main.c
index c111b9faf1..dce135d9d9 100644
--- a/shell/main.c
+++ b/shell/main.c
@@ -22,6 +22,7 @@
  */
 
 #include <config.h>
+#include <fcntl.h>
 #include <glib.h>
 #include <gtk/gtkmain.h>
 #include <gtk/gtklabel.h>
@@ -50,6 +51,7 @@
 static EShell *shell = NULL;
 static char *evolution_directory = NULL;
 static gboolean no_splash = FALSE;
+char *debug_log = NULL;
 
 
 static void
@@ -180,7 +182,8 @@ int
 main (int argc, char **argv)
 {
 	struct poptOption options[] = {
-		{ "no-splash", '\0', POPT_ARG_NONE, &no_splash, 0, N_("Disable."), NULL },
+		{ "no-splash", '\0', POPT_ARG_NONE, &no_splash, 0, N_("Disable splash screen"), NULL },
+		{ "debug", '\0', POPT_ARG_STRING, &debug_log, 0, N_("Send the debugging output of all components to a file."), NULL },
 		{ NULL, '\0', POPT_ARG_INCLUDE_TABLE, &oaf_popt_options, 0, NULL, NULL },
 		POPT_AUTOHELP
 		{ NULL, '\0', 0, NULL, 0, NULL, NULL }
@@ -190,6 +193,19 @@ main (int argc, char **argv)
 	textdomain (PACKAGE);
 
 	gnome_init_with_popt_table ("Evolution", VERSION, argc, argv, options, 0, NULL);
+
+	if (debug_log) {
+		int fd;
+
+		fd = open (debug_log, O_WRONLY | O_CREAT | O_TRUNC, 0600);
+		if (fd) {
+			dup2 (fd, STDOUT_FILENO);
+			dup2 (fd, STDERR_FILENO);
+			close (fd);
+		} else
+			g_warning ("Could not set up debugging output file.");
+	}
+
 	oaf_init (argc, argv);
 
 	glade_gnome_init ();